JSON Seriallize facebook name

I want to get the JSON data on Facebook, I got the name but it’s returning a JSON, how can I transform the JSON name to a string ?
This is a print of what i get:

Ignore the *"Nome = "* this is mine input, I have {"name": "Maria...", "id":
“1000…”}

How can I get this names on a string: actually this is part of my code:

	public void GetUserName()
	{
		FB.API("me?fields=name", Facebook.HttpMethod.GET, Callback);
	}
	void Callback(FBResult result)
	{
		texto.guiText.text = ("Nome = " + result.Text);
}

Just parse the Json, either use a parser like SimpleJson or do your own parser with some string substring and search for a string within a string.